BrainStuff

Latest Episodes:

Should you turn your computer off when it's not in use? Jul 07, 2014

Show notes

When it comes to the question of whether or not you should turn off your computer when you're not using it, there's no simple answer. Tune in to get Marshall's thorough take on the topic in this podcast from HowStuffWorks.com.

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How big is the universe? Jul 04, 2014

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If all the matter in the universe was pushed into one corner, how much space would it take up? Listen in as Marshall Brain explores the size of the universe in this podcast from HowStuffWorks.

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Why does hydrogen peroxide foam when you put it on a cut? Jul 02, 2014

Show notes

Hydrogen peroxide's foaming action is due to the catalase in blood and cells. Check out this HowStuffWorks podcast to learn how hydrogen peroxide interacts with catalase.

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What is a medical leech? Jun 25, 2014

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Medical leeches are raised in captivity and help patients heal wounds. Discover how leeches and other parasites are used for medical purposes in this podcast from HowStuffWorks.com.

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How does water desalination work? Jun 23, 2014

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Most of the water on the planet is salty, so people have come up with various ways to turn it into freshwater. Explore three methods of desalinating water in this podcast from HowStuffWorks.com.

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Why does my hard drive make that churning sound? Jun 20, 2014

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Inside the hard drive of many computers, a small arm moves across the face of the hard disk. Tune in to this podcast from HowStuffWorks.com to discover how the movement of this arm produces sound -- and why the arm must move to load files.

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How do space suits work? Jun 11, 2014

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Space suits provide oxygen, pressurize air, and control an astronaut's temperature. Learn more about space suits in this classic HowStuffWorks podcast, one of our editors' hand-picked favorites.

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What is a light year? Jun 09, 2014

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A light year is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this classic Brainstuff podcast from HowStuffWorks' archives to learn more about astronomy.

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How do the Northern Lights work? Jun 06, 2014

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The Northern Lights, also known as the aurora borealis, occur when charged electrons from the sun interact with the Earth's magnetic field. Learn more about auroras and solar activity in this episode.

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What would happen if the polar ice caps melted? Jun 04, 2014

Show notes

Learn more about melting ice caps, global warming and rising sea levels in this episode of BrainStuff.

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